How do we engage mentors for early-stage / aspiring entrepreneurs?

We have been conducting workshops to develop entrepreneurial skills in students. Based on feedback of many budding entrepreneurs, we plan to start a service (InspiDate) to connect them with successful entrepreneurs / coaches, willing to have calls with them online. There are many interested aspiring-entrepreneurs from several small Indian cities, but we do not have an adequate pool of mentors. Any suggestions to attract good mentors?

Also, any thoughts on how to be rate / evaluate each mentorship call or each mentor ?

Perhaps expand the pool to outside India too. Expand to any expertise that can help a startup.

Have a 5 star review system of specific advice. Have entrepreneurs pay a fee to get advice. Pool the revenue and split proportinally based on rankings.Mosaichub.com and xberts.com have varying models for this problem.

Our start-up Mentorloop www.mentorloop.com.au focusses on this very same market!

Building a two sided marketplace takes time but we've found that with an ageing workforce there are more qualified mentors available than ever before, willing to give of their time and connect with the next generation of leaders.

While talking to a number young Entrepreneurs, what I felt is that they also seek an adviser who can feel their vibe and pace, which are often missing in most "old guards". What they need is a guide and not a manager. The eco-system of these kind of advisers are still developing in India, and I found most of them in the networking events !